Roush Fenway Racing tweeted images of last year's No. 16 Ford, which ran a "Boston Strong" paint scheme at Darlington, as well as a badge with words of encouragement -- as did Hendrick Motorsports.

And New Hampshire track staffers made a YouTube video at the start/finish line of the 1.058-mile track.

On Monday afternoon, the event took in a decidedly NASCAR flavor. Meb Keflezighi became the first American man to win the Boston Marathon since 1983 with a time of 2 hours, 8 minutes, 37 seconds.

Keflezighi made an appearance at the 2012 NASCAR Sprint Cup Series Awards to present driver Clint Bowyer with an honorary entry bib to the Las Vegas Rock 'n' Roll Marathon. The skit was a spoof on Bowyer's sprint through the Phoenix garage to confront Jeff Gordon following their on-track incident.

See all those images and video below, and check back throughout the day. We'll post more as it comes in.

In a 2012 skit, Meb Keflezighi -- who won the Boston Marathon on Monday -- presented Clint Bowyer with a faux bib into the Las Vegas marathon. It had a familiar number.

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